Heat storage base for dinnerware



FIG. 1 is a top plan view of a heat storage base for dinnerware showing my new design;

FIG. 2 is a cross-sectional view thereof taken through the center of FIG. 1;

FIG. 3 is a bottom plan view thereof; and

FIG. 4 is a side elevation view thereof. 

The ornamental design for a heat storage base for dinnerware, as shown. 